Leaf mounting device



July 19, 1932. J. M. MEYERS LEAF MOUNTING DEVICE Filed Feb. 19, 1931 2 Sheets-Sheet 2 INVEN TOR.

414 ATTORNEY Patented July 19, 1932 JOSEPH M. MEYERS, OF PITTSBURGH, PENNSYLVANIA LEAF MOUNTING DEVICE Application filed February 19, 1931. Serial No. 516,860.

My invention consists of an improvement in leaf -mounting'devices for card index systems. The improvement is designed to simplify and cheapen the construction of the individual elementsof such a system, as that knownas Kardex, in which a-series of card or leaf holders'or supports are mounted in a suitable frame and are preferably adjustable and interchangeable in the frame and removable therefrom.

The prior art in such devices, as in the patent of Rand et al. No. 1,194,422, shows a system of the overlapping card type wherein cards are removably held by card holders or bases and detachable therefrom without removing'the card holders from the same. The cards are held by their'holders one in front of or above another, with their terminal edges or margins exposed. I

When. a card is removed from the system its card holder is ordinarily left in the frame, its space being reserved, and its absence from its proper place is visually indicated by the absence of its edge or margin from the proper place in the series of exposed card edges or margins.

, Ordinarily, in such systems with which I am familiar the card holder consists of a middle base portion provided with slots or other suitable attaching devices for reception and removal of the card, the base portion beingprovided with an upper mounting strip and a lower reinforcing-terminal edge framing, all of which parts involve more or less complication ,and expense in manufacture anduse.

In my presentinvention I provide for the mountingof a removable leaf, inithe standard frame of such system, by means of a particularly constructed-strip of paper or the like, with which a single.ordouble'thickness leaf is .removably connected. In the drawings illustrating the invention:

Fig. 1 is a face view showing such old or standard form of cardmounting unit;

Fig. 2 is a similar view showing my improvement;

Fig. 3 is a vertical cross section on the line III-III of Fig. 2;

Fig. 4 is a similar section on the line U IVIV of Fig. 2;

Fig. 5 is a face view of the stiff paper'strip adapted for connection with the doubled :leaf

Fig. 6 is a perspective view partly broken away, illustrating the manner of mounting the doubled leaf on:the holding strip;

Fig. 7 is a similar view showing the outer or front leaf partly thrown back;

Fig. 8 is a partial rear view of an assembled group of interengaging mounting units, with their doubled leaves attached;

Fi 9 is a vertical sectional view on the line I IX of Fig. 8;

Fig. 10 is a partial face View ofa strip as in Fig. 5 showing a modified construction;

Fig. 11 is a similar View with the holding tongue bent over.

Referring to Fig. l showing-the old construction above referred to, 21s a mounting strip of comparatively stifi' material, as 10 paper, celluloid, aluminum, or the like, to which by means of staples 3 is connected the permanent supporting base 4.

Such base is provided along its. upper edge, adjacent to the staples with a series of per- 78 forations 5, weakening the base 4 sothat it may be thrown upwardly in the manner of a hinge.

The base is-provided withdiagonally arranged slots 6 at the opposite corners through .0 which the corners of a card or leaf are inserted for temporarily mounting it on the base so that it may be removed when completely filled with information matter of any kind, and substituted by another. The lower edge of base 4 is reinforced by a, doubled binding 8 of celluloid or the like, fixedly connected by staples 9, and is preferably provided with a transverse series of perforations Q 10 fordesirable flexibility of the lower edge portion.

By such construction the several bases 4 with their attached cards are mounted by the strips 2 successively in overlapping relation, but with all portions of the card normally covered and concealed. Referring now to my improved construction, I provide a holding strip 11 of suitable dimensions as to length and width, to adapt it to interfitting engagement by its terminals 12 in the guiding and holding trackway of the mounting frame.

Strip 11 is provided adjacent its end portions with oppositely arranged L-shaped slits or slots 13 extending horizontally and vertically as shown through the base, thus leaving an intervening partly separated freely swinging middle tongue portion 14.

The opposite lower corners of the middle tongue, or flap section 14 are preferably rounded, as at 15, thus facilitating nesting insertion over and behind the upper edge of the next adjacent base 11.

Bytheconstructionof the L-sha'ped slots 13, it will be observed that there are also provided a pair of'inwardly extending terminal tongues 16 'forvinterengagement with and between the back and front layers a and 'b ofthe doubled leaf 17 Such leaf is doubled or creased on a bending line .18 and is integral at its top portion throughout :the main middle body of the leaf 17 onsuch. bending line 18, to the extent indicated by the dimension as, Fig. 2.

Therebeyond, at each end, the left is severed or slitted, as at 19, to the extent of the dimensions 3/ at each end. The front leaf section b is preferably somewhat shorter in depth than the rear leaf a, so that the latter projects below'or beyond it, to any desirable extent, as indicated in Fig. 2.

Theadvantage of such construction is that when a series of such doubled leaves are mounted by their holders successively in overlapping longitudinally spaced position, the

lower margin of .each individual rear leaf will not entirely overlap the next successive leaf underneath, throughout a series, thus providing a visible exposed margin to, upon which may be written, stamped, or otherwise applied a name, number, or other desirable tie horizontal slot of-the L-shaped incision 13.

indicia.

, The doubled leaves 17 as thus made areeasilyrand quickly connected to and discon nectedfrom the base 11 merely by'first inserting one of the tongues 16 between the upper partly slitted side edges of one of the partly severed leaf corners a and 32. Then by retracting the opposite slitted edge sufliciently, the rear corners a may be slipped underneath and behind theopposite inwardly exten ding tonguej 16, with the upper doubled integral edge 18 in alinement with the By such application the upper partly slitted back corner portion a. of the rear leaf a is placed behind, with the outer corner I) in front and the tongue between them, at both opposite sides.

that the base 11 and its leaf are capable of mounting successively between an outer and an inner companion unit, with whlch the lntermedlate tongue 14 will engage, such tonguesnesting successively behind the upper edge of the next adjacent lower base 11. By such mounting, the several units and the lower edges of sheet 17 are uniformly spaced apart a distance corresponding approximately to the width of the basenpwardly above its horizontal slots 13.

' Tongue 14 in such case will be slightly deflected backwardly on the line a, which may be creasedof slightly weakened as desired.

'I show in Figs... 10 and 11 a modified construction of the holding strip or base 11' in which the leaf-engaging slotted tongue is formed as an independent element. Thebase or strip 11 is generally the same as above described, having'the terminals 12 and the middle flap 14 separated from the ends by slots 13a.

The holding tongues 16a for interconnection'with the slotted corners of theleaf extend beyond and are integrally connected with the base for a portion of their length, as

at 16'?) and extend inwardly a sufficient distance beyond the slot 136. Whenbent'downwardly on the base along the line of the-slot, as in Fig. 11, the tongues 16a, are in position for engagement with the slotted corners of the paper, in the manner above described.

The construction and operationof the invention will be readilyunderstoodfand appreciated from the foregoing description. ItproVides in a simple and extremely econo nical manner for the quite suiiiciently permanent but temporarymounting of *the doubled leaves 17 on'the thin bases 11, and for expeditious attachment to or removal therefrom. f Likewise, the entirevthickness of the body portion of the utilizable part of the unit is comprised in the doubled leaves, thus greatly reducing the thickness of an overlapping series, and with consequent reduction in the necessary depth of, the holding tray o'rjframel Obviously, theimproved card 'or'lea'f system unit may be varied in dimensions-or util- 'ized in connection with any desired form of subdi'vi'sional lines, headings, printing, 1 etc.,

to adapt it to any particular system of ac? flexible base strip having opposite insertion terminals and inwardly extending tongues both on the same plane as the base, and an v intermediate rearwardly movable and slopingly disposable holding flap engageable over the upper edge of an adjacent similar strip.

2. A leaf mounting device consisting of a base strip having opposite insertion terminals and inwardly extending tongues spaced from the base by an intervening L-shaped slot providing an intermediate downwardly extending holding flap.

3. A leaf mounting device consisting of a base strip having opposite insertion terminals and integrally connected leaf-holding tongues partly separated from the base by intervening L-shaped slots providing an ingermediate downwardly extending holding 4;. A leaf mounting device consisting of a base strip having opposite insertion terminals and inwardly extending tongues and provided with a middle holding flap having rounded insertion corners.

5. A leaf mounting device consisting of a base strip having opposite insertion terminals and inwardly extending tongues and provided with a middle integral holding flap partly separated from said tongues by transverse slots providing an intermediate downwardly extending holding flap.

6. A leaf-holding device consisting of a flexible base strip having opposite insertion terminals and inwardly extending tongues and a middle holding flap partly severed from the ends of the base strip transversely and adapted to be deflected backwardly from the plane of the ends for insertion behind an paper sheet having end portions separated inwardly on the crease line providing rear and front integral sheet sections engaging the base strip at back and front thereof outwardly beyond said tongues.

9. In combination, a base strip having opposite mounting terminals and inwardly extending tongues and a middle holding flap, and a doubled and creased paper sheet having end portions separated inwardly on the crease line providing rear and front integral sheet sections engaging the base strip at back and front thereof outwardly beyond said tongues.

In testimony whereof I hereunto aflix my signature.

' JOSEPH M. MEYERS. 

